#define OS_ERRNO_HWI_NUM_INVALID   LOS_ERRNO_OS_ERROR(LOS_MOD_HWI, 0x00)

Hardware interrupt error code: Invalid interrupt number.

Value: 0x02000900

Solution: Ensure that the interrupt number is valid. The value range of the interrupt number applicable for a Cortex-A7 platform is [OS_USER_HWI_MIN,OS_USER_HWI_MAX].

在文件los_hwi.h182行定义。